Systemprompt.io alternatives

Tools that do what Systemprompt.io does, found by what they say they do rather than by shelf. Among the equally alike, the most used come first. Each line says how it differs from Systemprompt.io.

Read 2026-10-20

With a free plan or free to use: FusionAuth, Cloudflare, OpenBox, Lumo by Proton, iSpyConnect.

10 alternativesUnlike Systemprompt.io

#1
Barndoor AI Security
Routes AI model and agent requests through access controls, data-loss prevention and audit logging before they reach the model.
Also: SecurityMore widely used
6.5k
Active
Contact sales
#2
Mintive Sales MCP · open
Routes AI agents and clients to MCP tool servers through one gateway with per-agent identities, role-based access and audit logs.
Also: SecurityMore widely used
1.3k
Active
Contact sales
#3
FusionAuth Security MCP · open
Hosts login, single sign-on, multi-factor and passwordless authentication, plus user management and role-based access, self-hosted or on FusionAuth's cloud.
Free planMore widely used
42.2k
Active
From $162/mo
#4
Cloudflare Security MCP · open
Proxies website traffic through a global network for CDN caching, DNS, DDoS protection and a web firewall, plus Workers serverless code and zero-trust access.
Free planAlso: Agents
4.9M
Active
From $20/mo
2009
#5
Oso Cloud Policy AI Security
Evaluates application authorization rules written in the Polar policy language through an API, deciding which users or agents can access what.
Also: SecurityMore widely used
4.4k
Active
From $15/user/mo
#6
OpenBox Developer tools
Enforces identity, authorization, and policy controls across agent actions at runtime with cryptographic verification.
Free planAlso: Security, Agents
46
Active
Free plan
2025
#7
Skyflow Security
Encrypts and controls access to sensitive data across enterprise systems and AI applications at runtime.
Also: Security, ComplianceMore widely used
1.4k
Active
Contact sales
2019
#8
Lumo by Proton Security
Provides encrypted email, calendar, cloud storage, password manager and VPN under one Proton account, with the Lumo chat assistant as an add-on.
Free planAlso: Chat assistant, Security
3.4M
Active
Free plan
2014
#9
AI Governance Infrastructure Security
Unified platform to integrate AI models and manage compliance with EU AI Act and ISO 42001 standards.
Also: ComplianceMore widely used
143
Active
Contact sales
#10
iSpyConnect Security MCP · sign-in
Records and analyses IP and USB camera feeds on your own machine, flagging motion and objects and sending alerts.
Free planAlso: Monitoring
24.3k
Active
From $7.95/mo
2007

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How this list is made: the words Systemprompt.io is described with (what it does, for whom, what it is used for) are matched against every tool in the Atlas. A tool on the same shelf, or doing the same kind of work, counts for a little more. Nothing here is paid for.